ID-2 Transmits blank data

I have an ID-2 RFiD reader hooked up to a bluesmirf, the circuit is working and the device is pairing fine to my computer, however when I check the data coming in through the port in hyper terminal it is just blank data, by this i mean the cursor moves across the screen the length of a tags ID, but there are no characters, just empty spaces?

Anyone have any thoughts or suggestions?

Could it be related to a tuning capacitor for the external antenna?